Al-Handal, Adil Yousif; Wulff, Angela; Hasemann, Christiane; Hoffmann, Ralf (2018): Density, biomass and diversity of the diatom community at Faro, Creek and Isla D in Potter Cove (King George Island) in November and December 2016 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.893272, In supplement to: Hoffmann, Ralf; Al-Handal, Adil Yousif; Wulff, Angela; Deregibus, Dolores; Zacher, Katharina; Quartino, Maria Liliana; Wenzhöfer, Frank; Braeckman, Ulrike (2019): Implications of Glacial Melt-Related Processes on the Potential Primary Production of a Microphytobenthic Community in Potter Cove (Antarctica). Frontiers in Marine Science, 6, https://doi.org/10.3389/fmars.2019.00655
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Further details:
Al-Handal, Adil Yousif; Wulff, Angela (2008): Marine benthic diatoms from Potter Cove, King George Island, Antarctica. Botanica Marina, 51(1), 51-68, https://doi.org/10.1515/BOT.2008.007
Al-Handal, Adil Yousif; Wulff, Angela (2008): Marine epiphytic diatoms from the shallow sublittoral zone in Potter Cove, King George Island, Antarctica. Botanica Marina, 51(5), 411-435, https://doi.org/10.1515/BOT.2008.053
Edler, L (1979): Recommendations on methods for marine biological studies in the Baltic Sea. Phytoplankton and chlorophyll. Balt. Mar. Biolog. Publ., 1–38, 5, 1-38
Hillebrand, Helmut; Dürselen, Claus-Dieter; Kirschtel, David; Pollingher, U; Zohary, Tamar (1999): Biovolume calculation for pelagic and benthic microalgae. Journal of Phycology, 35(2), 403-424, https://doi.org/10.1046/j.1529-8817.1999.3520403.x
Scott, F J; Thomas, D P (2005): “Diatoms” in Antarctic marine protists. In: Scott, F J & Marchant, H J (eds.), Australian biological resources study, Australian antarctic division, Canberra, Hobart, 13-201
Sun, Jun; Liu, Dongyan (2003): Geometric models for calculating cell biovolume and surface area for phytoplankton. Journal of Plankton Research, 25(11), 1331-1346, https://doi.org/10.1093/plankt/fbg096
Sundbäck, Kristina; Nilsson, Per; Nilsson, Claes; Jönsson, Benno (1996): Balance between autotrophic and heterotrophic components and processes in microbenthic communities of sandy sediments: a field study. Estuarine, Coastal and Shelf Science, 43(6), 689-706, https://doi.org/10.1006/ecss.1996.0097
Witkowski, A; Lange-Bertalot, H; Metzeltin, D (2000): Diatom flora of marine coasts I. Iconographia diatomologica. A.R.G. Gantner Verlag, Ruggell
Coverage:
Median Latitude: -62.228683 * Median Longitude: -58.654650 * South-bound Latitude: -62.235580 * West-bound Longitude: -58.662060 * North-bound Latitude: -62.225110 * East-bound Longitude: -58.641750
Date/Time Start: 2016-11-05T00:00:00 * Date/Time End: 2016-12-11T00:00:00
Minimum DEPTH, sediment/rock: 0.0025 m * Maximum DEPTH, sediment/rock: 0.0025 m
Event(s):
PotterCove_Creek_2016-L * Latitude: -62.235580 * Longitude: -58.662060 * Date/Time: 2016-12-03T00:00:00 * Elevation Start: -7.0 m * Elevation End: -8.0 m * Location: Potter Cove, King George Island, Antarctic Peninsula * Method/Device: Sampling by diver (DIVER) * Comment: Sediment cores: 50 cm length, 10 cm diameter
PotterCove_Creek_2016-S * Latitude: -62.235580 * Longitude: -58.662060 * Date/Time: 2016-11-11T00:00:00 * Elevation Start: -7.0 m * Elevation End: -8.0 m * Location: Potter Cove, King George Island, Antarctic Peninsula * Method/Device: Sampling by diver (DIVER) * Comment: Sediment core: 10 cm length, 3.5 cm diameter
PotterCove_Faro_2016-L * Latitude: -62.225360 * Longitude: -58.660140 * Date/Time: 2016-11-22T00:00:00 * Elevation Start: -8.0 m * Elevation End: -9.0 m * Location: Potter Cove, King George Island, Antarctic Peninsula * Method/Device: Sampling by diver (DIVER) * Comment: Sediment cores: 50 cm length, 10 cm diameter
Comment:
For benthic microalgae (microphytobenthos, MPB) community analyses, triplicates of small sediment cores (10 cm length, 3.6 cm diameter) were taken at the stations Faro, Creek and Isla D, respectively, by SCUBA divers during a field campaign to Potter Cove (King George Island, Antarctica) in November and December 2016. Additionally, one larger sediment core (50 cm length, 10 cm diameter), also collected by SCUBA divers, was subsampled for an additional MPB community sample.
The upper 0.5 cm sediment layer of a sediment core was transferred into a scintillation vial and 5 mL GF/F filtered seawater (Whatman, UK) and 1 mL of 25% glutaraldehyde was added. The vial was wrapped in parafilm (Bemis Company, USA) and stored at 4°C until analyses in the home laboratory.
For the identification and counting of diatoms, diatom valves were cleaned with 30% hydrogen peroxides and mounted in Naphrax after proper rinsing with deionized water (Al-Handal and Wulff, 2008a). Identification of taxa was made following established protocols (Witkowski et al., 2000; Scott and Thomas, 2005; Al-Handal and Wulff, 2008a, 2008b). Enumeration of diatom valves on the slides was made by counting intact valves on the whole slide using Zeiss Axio Image 2 compound microscope equipped with differential interphase contrast under 400-fold magnification. During the identification of taxa, the length and width of pennate valves and the diameter of centric valves were measured using a micrometer. The average length and width of at least 30 valves per taxon and the assumed height of 1 µm (Edler, 1979) were used to calculate the biovolume of diatom cells following Hillebrand et al. (1999) and Sun and Liu (2003). The diatom cell biovolumes were converted into diatom carbon biomass using a conversion factor of 0.089 pg C/ µm³ cell biovolume (Sundbäck et al., 1996). The Shannon-Wiener diversity index H' was calculated using Primer v6.
Parameter(s):
License:
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC-BY-NC-SA-3.0)
Size:
1212 data points